Axiom Mission 4 astronauts, including India’s Shubhanshu Shukla, are preparing to leave the ISS. Here's when and where to watch the live return.

Satellite imagery has revealed a yet-to-be-explained rise in the Southern Ocean's salinity. It could be a key factor in the decline of the region's sea ice.

Chinese radar has detected mysterious plasma bubbles hovering over Egypt’s Pyramids from 5,000 miles away.

During a record-breaking flight through the sun’s corona in Dec. 2024, NASA’s Parker Solar Probe captured the closest-ever ...